Home / 7,819.43-11,729.16-3,922.92

Finding the Fourth Proportional to 7,819.43, 11,729.16 and 3,922.92

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Solution

The fourth proportional to 7,819.43, 11,729.16 and 3,922.92 is: 5,884.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.43 : 11,729.16 = 3,922.92 : x
  2. Step 2: Convert to fraction form
    7,819.43/11,729.16 = 3,922.92/x
  3. Step 3: Cross multiply
    7,819.43x = 11,729.16 × 3,922.92
  4. Step 4: Simplify right side
    7,819.43x = 46,012,556.35
  5. Step 5: Solve for x
    x = 46,012,556.35/7,819.43
  6. Step 6: Final answer
    x = 5,884.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.